#include <Adafruit_SH110X.h>
#include <Wire.h>
#include <DHT.h>

// Funciones
void updateDht22Display(float t, float h);

// Perifericos
const short LED = 23;
const short DHT22_PIN = 33;
Adafruit_SH1106G display = Adafruit_SH1106G(128, 64, &Wire, -1);
DHT dht(DHT22_PIN, DHT22);


void setup() {
  
  // Inicializar comunicacion serial
  Serial.begin(9600);

  // Inicializar led
  pinMode(LED, OUTPUT);
  
  // Inicializar pantalla OLED
  display.begin(0x3c, true); 
  display.setTextSize(1);
  display.setTextColor(SH110X_WHITE);

  // Inicializar sensor DHT22
  dht.begin();

}

void loop() {

  float temp = dht.readTemperature();
  float hum = dht.readHumidity();
  updateDht22Display(temp, hum);

  if (temp >= 20) {
    digitalWrite(LED, HIGH);
  } else {
    digitalWrite(LED, LOW);
  }

  delay(100);

}


void updateDht22Display(float t, float h) {
  display.clearDisplay();  
  display.setCursor(0,0);
  display.printf("Temp: %.1f C\nHum: %.1f%", t, h);
  display.display();
}